Free Float Calculator

✖Early Finish Time is the earliest point in time when the scheduled activity can complete.ⓘ Early Finish Time [EFT]			+10% -10%
✖Early Start Time is the earliest point in time when the scheduled activity can begin.ⓘ Early Start Time [EST]			+10% -10%
✖Activity time is the estimated task duration based on preceding logic and constraints.ⓘ Activity Time [t_activity]			+10% -10%

✖Free Float is the period by which an activity can shift in its timing without affecting the Early Start of any succeeding activity or event.ⓘ Free Float [FF₀]

⎘ Copy

👎

Formula

✖

Free Float

Formula

`"FF"_{"0"} = "EFT"-"EST"-"t"_{"activity"}`

Example

`"7d"="46d"-"19d"-"20d"`

Calculator

LaTeX

Reset

👍

Download Time Estimation Formulas PDF

Free Float Solution

STEP 0: Pre-Calculation Summary

Formula Used

Free Float = Early Finish Time-Early Start Time-Activity Time
FF₀ = EFT-EST-t_activity
This formula uses 4 Variables

Variables Used

Free Float - (Measured in Second) - Free Float is the period by which an activity can shift in its timing without affecting the Early Start of any succeeding activity or event.
Early Finish Time - (Measured in Second) - Early Finish Time is the earliest point in time when the scheduled activity can complete.
Early Start Time - (Measured in Second) - Early Start Time is the earliest point in time when the scheduled activity can begin.
Activity Time - (Measured in Second) - Activity time is the estimated task duration based on preceding logic and constraints.

STEP 1: Convert Input(s) to Base Unit

Early Finish Time: 46 Day --> 3974400 Second (Check conversion here)
Early Start Time: 19 Day --> 1641600 Second (Check conversion here)
Activity Time: 20 Day --> 1728000 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

FF₀ = EFT-EST-t_activity --> 3974400-1641600-1728000

Evaluating ... ...

FF₀ = 604800

STEP 3: Convert Result to Output's Unit

604800 Second -->7 Day (Check conversion here)

FINAL ANSWER

7 Day <-- Free Float

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Mechanical » Industrial Engineering » Time Estimation » Free Float

Credits

Created by Suman Ray Pramanik

Indian Institute of Technology (IIT), Kanpur

Suman Ray Pramanik has created this Calculator and 50+ more calculators!

Verified by Akshada Kulkarni

National Institute of Information Technology (NIIT), Neemrana

Akshada Kulkarni has verified this Calculator and 900+ more calculators!

< 16 Time Estimation Calculators

Expected Waiting Time for Customers in Queue

Go Expected Waiting Time for Customers in Queue = Mean Arrival Rate/(Mean Service Rate*(Mean Service Rate-Mean Arrival Rate))

Standard Normal Variation

Go Standard Normal Variation = (Normal Variate-Expected Value)/Standard Deviation

PERT Expected Time

Go PERT Expected Time = (Optimistic Time+4*Most Likely Time+Pessimistic Time)/6

Time Taken for Manufacturing Model with Shortage

Go Time taken for Manufacturing Model with Shortage = EOQ Manufacturing Model with Shortage/Demand per Year

Independent Float

Go Independent Float = Early Finish Time-Late Start Time-Activity Time

Total Float

Go Total Float = Late Finish Time-(Early Start Time+Activity Time)

Free Float

Go Free Float = Early Finish Time-Early Start Time-Activity Time

Expected Waiting Time for Customers in System

Go Expected Waiting Time for Customers in System = 1/(Mean Service Rate-Mean Arrival Rate)

Time Taken for Purchase Model with No Shortage

Go Time taken for Purchase Model no Shortage = Economic Order Quantity/Demand per Year

Time Taken for Purchase Model with Shortage

Go Time taken for Purchase Model with Shortage = EOQ Purchase Model/Demand per Year

Total Float given Finish Time

Go Total Float given Finish Times = Late Finish Time-Early Finish Time

Standard Deviation given Optimistic and Pessimistic Time

Go Standard Deviation = (Pessimistic Time-Optimistic Time)/6

Independent Float given Slack

Go Independent Float given Slack = Free Float-Slack of Event

Late Finish Time

Go Late Finish Time = Late Start Time+Duration of Activity

Early Finish Time

Go Early Finish Time = Early Start Time+Safety Stock

Total Float given Start Time

Go Total Float = Late Start Time-Early Start Time

Free Float Formula

Free Float = Early Finish Time-Early Start Time-Activity Time
FF₀ = EFT-EST-t_activity

What is Free float?

Free float is the period by which an activity can shift in its timing without affecting the Early Start of any succeeding activity or event. Free float, also known as public float, refers to the shares of a company that can be publicly traded and are not restricted.

How to Calculate Free Float?

Free Float calculator uses Free Float = Early Finish Time-Early Start Time-Activity Time to calculate the Free Float, Free float is the period by which an activity can shift in its timing without affecting the Early Start of any succeeding activity or event. Free Float is denoted by FF₀ symbol.

How to calculate Free Float using this online calculator? To use this online calculator for Free Float, enter Early Finish Time (EFT), Early Start Time (EST) & Activity Time (t_activity) and hit the calculate button. Here is how the Free Float calculation can be explained with given input values -> 8.1E-5 = 3974400-1641600-1728000.

FAQ

What is Free Float?

Free float is the period by which an activity can shift in its timing without affecting the Early Start of any succeeding activity or event and is represented as FF₀ = EFT-EST-t_activity or Free Float = Early Finish Time-Early Start Time-Activity Time. Early Finish Time is the earliest point in time when the scheduled activity can complete, Early Start Time is the earliest point in time when the scheduled activity can begin & Activity time is the estimated task duration based on preceding logic and constraints.

How to calculate Free Float?

Free float is the period by which an activity can shift in its timing without affecting the Early Start of any succeeding activity or event is calculated using Free Float = Early Finish Time-Early Start Time-Activity Time. To calculate Free Float, you need Early Finish Time (EFT), Early Start Time (EST) & Activity Time (t_activity). With our tool, you need to enter the respective value for Early Finish Time, Early Start Time & Activity Time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search